Segment routing gateway storing segment routing encapsulating header used in encapsulating and forwarding of returned native packet
US10506083B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2017 |
| Grant date | Dec 10, 2019 |
| Priority date | — |
| Expiry date | Sep 13, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2212/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a Segment Routing gateway receives Segment Routing packets encapsulating native packets. The Segment Routing gateway stores the Segment Routing encapsulating headers. The native packets are communicated to a service function (or other device). Upon return, Segment Routing packets are generated including the returned native packets using correspondingly stored Segment Routing encapsulating headers, possibly updated with new policies. Segment Routing includes, but is not limited to, SRv6 and SR-MPLS. In one embodiment, the native packet is sent from a physical interface of the SR gateway to the service function, and returned to the SR gateway on one of its physical interface(s). In one embodiment, shared storage is accessible to both the SR gateway and the service function (or other device), so references (e.g., memory locations or pointers) are communicated between the SR gateway and the service function (or other device).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.